class Sungjuk_6_1{
	String hakbun;
	String name;
	int jumsu;
	public void set_hakbun(String hakbun){
		this.hakbun = hakbun;
	}
	public void set_name(String name){
		this.name = name;
	}
	public void set_jumsu(int jumsu){
		this.jumsu = jumsu;
	}
	public void prt_data(){
		System.out.println(hakbun + " " + name + " " + jumsu);
	}
	void title(){
		System.out.println("**** 자바의 객체 생성 및 속성 사용 ****");
		System.out.println("****    정보통신전자공학부         ****");
		System.out.println("****     20052426 장수은         ****");
	}
}
class Sungjuk_6_1_1 extends Sungjuk_6_1{
	void title() {
		super.title();
	}
	
}
class ex_6_1 extends Sungjuk_6_1{
	public static void main(String[] args){
		Sungjuk_6_1 test = new Sungjuk_6_1();
		test.set_hakbun("20052426");
		test.set_name("장수은");
		test.set_jumsu(84);
		Sungjuk_6_1 test2 = new Sungjuk_6_1();
		test2.set_hakbun("20071035");
		test2.set_name("김수진");
		test2.set_jumsu(95);
		Sungjuk_6_1 test3 = new Sungjuk_6_1();
		test3.set_hakbun("20082413");
		test3.set_name("장형철");
		test3.set_jumsu(75);
		Sungjuk_6_1_1 print = new Sungjuk_6_1_1();
		print.title();
		test.prt_data();
		test2.prt_data();
		test3.prt_data();
		
	}
}